ProQR Announces Closing of Underwritten Public Offering of Ordinary Shares with Full Exercise of Underwriters’ Option to Purchase Additional Shares

LEIDEN, Netherlands and CAMBRIDGE, Mass., Sept. 11, 2018 — ProQR Therapeutics N.V. (Nasdaq:PRQR), a biopharmaceutical company dedicated to changing lives through the creation of transformative RNA medicines for the treatment of severe genetic rare diseases, today announced the closing of its previously announced underwritten public offering of 6,612,500 ordinary shares at a price to the public of $15.75 per share. The closing included the full exercise of the underwriters’ option to purchase 862,500 additional ordinary shares at the public offering price, less underwriting discounts and commissions. Gross proceeds from the offering totaled approximately $104.1 million, before deducting underwriting discounts and commissions and offering expenses.
Citigroup, Evercore ISI and RBC Capital Markets acted as joint bookrunners for the offering. H.C. Wainwright & Co. and Chardan acted as co-managers for the offering. Kempen & Co acted as the Company’s European financial advisor in relation to this offering.
A shelf registration statement relating to the offered ordinary shares was filed with the Securities and Exchange Commission (SEC) on October 2, 2015, which was declared effective on October 19, 2015. A prospectus supplement and accompanying prospectus related to the offering have been filed with the SEC and are available on the SEC’s website, located at www.sec.gov. Copies of the final prospectus supplement and the accompanying prospectus relating to the offering may be obtained from Citigroup Global Markets Inc., c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717, or by telephone at (800) 831-9146; Evercore ISI, Attention: Equity Capital Markets, 55 East 52nd Street, 36th Floor, New York, NY 10055, or by telephone at (888) 474-0200 or by email at ecm.prospectus@evercore.com; or RBC Capital Markets, LLC, Attention: Equity Syndicate, 200 Vesey Street, 8th Floor, New York, NY 10281, or by telephone at (877) 822-4089, or by email at equityprospectus@rbccm.com.
This press release shall not constitute an offer to sell or a solicitation of an offer to buy these securities nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

About ProQR
ProQR Therapeutics is dedicated to changing lives through the creation of transformative RNA medicines for the treatment of severe genetic rare diseases such as Leber’s congenital amaurosis 10, dystrophic epidermolysis bullosa and cystic fibrosis. Based on our unique proprietary RNA repair platform technologies we are growing our pipeline with patients and loved ones in mind.
*Since 2012*

Forward-Looking StatementsThis press release contains forward-looking statements. All statements other than statements of historical fact are forward-looking statements, which are often indicated by terms such as “anticipate,” “believe,” “could,” “estimate,” “expect,” “goal,” “intend,” “look forward to”, “may,” “plan,” “potential,” “predict,” “project,” “should,” “will,” “would” and similar expressions. Forward-looking statements are based on management’s beliefs and assumptions and on information available to management only as of the date of this press release. These forward-looking statements include, but are not limited to, statements about ProQR’s business and efforts to develop RNA medicines. These forward-looking statements involve risks and uncertainties, many of which are beyond ProQR’s control. Applicable risks also include those that are included in ProQR’s prospectus supplement and accompanying prospectus filed with the SEC for the offering, including the documents incorporated by reference therein, which include ProQR’s Annual Report on Form 20-F for the year ended December 31, 2017, and any subsequent SEC filings. Given these risks, uncertainties and other factors, you should not place undue reliance on these forward-looking statements, and we assume no obligation to update these forward-looking statements, even if new information becomes available in the future, except as required by law.